Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.
With the right people and the right ideas, there's no limit to what we can achieve.Sounds awesome, right? Now, let's make sure you're a good fit for the role:Key Responsibilities
Key Responsibilities
Platform Development:
Develop and enhance core translation services and backend applications using Java and Spring Boot.Optimization & Evaluation:
Support direct integrations with translation providers;
continually evaluate and improve translation quality, system scalability, cost efficiency, and latency.API & Event Pipelines:
Build highly available, reliable REST APIs and Kafka-driven asynchronous pipelines for processing high-volume content and translation tasks.Operational Excellence:
Implement end-to-end monitoring, logging, error handling, retries, automated testing, and validation mechanisms for complex translation workflows.Scale & Performance:
Drive performance tuning and architecture enhancements to handle increasing translation volumes seamlessly.Production Support:
Assist with production deployments, CI/CD pipelines, system monitoring, and troubleshooting to ensure platform stability.Cross-Functional Collaboration:
Partner with cross-functional engineering teams,



product managers, and key stakeholders on technical design, system architecture, code reviews, and documentation.General Expansion:
Contribute to the long-term evolution of the platform to support international expansion, additional languages, and diverse content formats across major media brands (including WSJ and international outlets).Qualifications & Skills
Required:
Core Backend:
Proven expertise in
Java
and
Spring Boot
for building scalable RESTful APIs and enterprise microservices.Cloud & Infrastructure:
Hands-on experience with
Google Cloud Platform (GCP)
or other major public cloud environments.Event-Driven Architecture:
Experience with
Apache Kafka
or similar messaging systems for event-driven architectures and streaming pipelines.Software Engineering Practices:
Proficiency with Git, CI/CD pipelines, automated testing (unit, integration, e2e), code reviews, and Agile methodologies.Communication:
Excellent technical communication skills with fluency in written and spoken English.Preferred / Nice to Have:
Prior experience building or maintaining
content management platforms (CMS)
, digital publishing systems, or media workflows.Experience evaluating LLM prompt engineering, fine-tuning, or MT quality estimation metrics (e.G., BLEU, COMET).What we offer:
Commitment to Professional DevelopmentFlexible and Collaborative CultureTotal Rewards*Specific benefits are determined by the employment type and location.*

📌 Senior Java Engineer (Barcelona)
🏢 Wizeline
📍 Barcelona